Tuesday, December 05, 2006
I wasn't planning on being on Kitt Peak at sunset tonight, but backups took a lot longer. I took this image looking away from the Sun about 6 minutes after sunset. The Earth's shadow is visible at the bottom over the top of Tucson with anti-crepuscular rays above the shadow. This image was taken at 18mm focal length with an exposure of 1/125 seconds at f/3.5, ISO 400.